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* [Bug middle-end/50700] New: [4.6/4.7 Regression] __builtin_object_size computed wrong
@ 2011-10-12 9:56 rguenth at gcc dot gnu.org
2011-10-12 9:57 ` [Bug middle-end/50700] " rguenth at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-10-12 9:56 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50700
Bug #: 50700
Summary: [4.6/4.7 Regression] __builtin_object_size computed
wrong
Classification: Unclassified
Product: gcc
Version: 4.6.1
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: rguenth@gcc.gnu.org
extern void abort (void);
struct S {
int len;
char s[0];
};
int main()
{
char buf[sizeof (struct S) + 32];
if (__builtin_object_size (((struct S *)&buf[0])->s, 1) != 32)
abort ();
return 0;
}
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug middle-end/50700] [4.6/4.7 Regression] __builtin_object_size computed wrong 2011-10-12 9:56 [Bug middle-end/50700] New: [4.6/4.7 Regression] __builtin_object_size computed wrong rguenth at gcc dot gnu.org @ 2011-10-12 9:57 ` rguenth at gcc dot gnu.org 2011-10-12 13:20 ` rguenth at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: rguenth at gcc dot gnu.org @ 2011-10-12 9:57 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50700 Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2011-10-12 Known to work| |4.5.3 AssignedTo|unassigned at gcc dot |rguenth at gcc dot gnu.org |gnu.org | Target Milestone|--- |4.6.2 Ever Confirmed|0 |1 --- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-12 09:56:33 UTC --- I have a patch. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/50700] [4.6/4.7 Regression] __builtin_object_size computed wrong 2011-10-12 9:56 [Bug middle-end/50700] New: [4.6/4.7 Regression] __builtin_object_size computed wrong rguenth at gcc dot gnu.org 2011-10-12 9:57 ` [Bug middle-end/50700] " rguenth at gcc dot gnu.org @ 2011-10-12 13:20 ` rguenth at gcc dot gnu.org 2011-10-12 13:22 ` rguenth at gcc dot gnu.org 2011-10-12 14:27 ` rguenth at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: rguenth at gcc dot gnu.org @ 2011-10-12 13:20 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50700 --- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-12 13:19:38 UTC --- Author: rguenth Date: Wed Oct 12 13:19:34 2011 New Revision: 179850 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179850 Log: 2011-10-12 Richard Guenther <rguenther@suse.de> PR tree-optimization/50700 * tree-object-size.c (addr_object_size): Simplify and treat MEM_REF bases consistently. * gcc.dg/builtin-object-size-12.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/builtin-object-size-12.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-object-size.c ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/50700] [4.6/4.7 Regression] __builtin_object_size computed wrong 2011-10-12 9:56 [Bug middle-end/50700] New: [4.6/4.7 Regression] __builtin_object_size computed wrong rguenth at gcc dot gnu.org 2011-10-12 9:57 ` [Bug middle-end/50700] " rguenth at gcc dot gnu.org 2011-10-12 13:20 ` rguenth at gcc dot gnu.org @ 2011-10-12 13:22 ` rguenth at gcc dot gnu.org 2011-10-12 14:27 ` rguenth at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: rguenth at gcc dot gnu.org @ 2011-10-12 13:22 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50700 --- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-12 13:22:18 UTC --- Author: rguenth Date: Wed Oct 12 13:22:12 2011 New Revision: 179851 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179851 Log: 2011-10-12 Richard Guenther <rguenther@suse.de> PR tree-optimization/50700 * tree-object-size.c (addr_object_size): Simplify and treat MEM_REF bases consistently. * gcc.dg/builtin-object-size-12.c: New testcase. Added: branches/gcc-4_6-branch/gcc/testsuite/gcc.dg/builtin-object-size-12.c Modified: branches/gcc-4_6-branch/gcc/ChangeLog branches/gcc-4_6-branch/gcc/testsuite/ChangeLog branches/gcc-4_6-branch/gcc/tree-object-size.c ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/50700] [4.6/4.7 Regression] __builtin_object_size computed wrong 2011-10-12 9:56 [Bug middle-end/50700] New: [4.6/4.7 Regression] __builtin_object_size computed wrong rguenth at gcc dot gnu.org ` (2 preceding siblings ...) 2011-10-12 13:22 ` rguenth at gcc dot gnu.org @ 2011-10-12 14:27 ` rguenth at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: rguenth at gcc dot gnu.org @ 2011-10-12 14:27 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50700 Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED --- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-12 14:26:42 UTC --- Fixed. ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2011-10-12 14:27 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2011-10-12 9:56 [Bug middle-end/50700] New: [4.6/4.7 Regression] __builtin_object_size computed wrong rguenth at gcc dot gnu.org 2011-10-12 9:57 ` [Bug middle-end/50700] " rguenth at gcc dot gnu.org 2011-10-12 13:20 ` rguenth at gcc dot gnu.org 2011-10-12 13:22 ` rguenth at gcc dot gnu.org 2011-10-12 14:27 ` rguenth at gcc dot gnu.org
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